植物忍耐铁素缺乏胁迫的生理机制研究进展

Advances in Tolerance Mechanism of Plants to Iron Deficiency

铁素营养缺乏是石灰性和碱性旱地上植物景易遭受的矿质营养胁迫障碍之一。不同植物种对缺铁胁迫的敏感性及忍耐力存在显著差异,高等植物界存在两种有质的区别的适应缺铁逆境特性模式。本文着重介绍并讨论了由Rmheld等最新提出的有关高等植物忍耐缺铁胁迫的两种模式以及相关机理的研究进展,并提出了行之有效的诊断与矫正方法。

Iron deficiency is one of the most popular mineral nutrition disorders of higher plants in calcareous and alkaline soils. There are significant differences in tolerances to iron deficit among genotypes of higher plants. Two typical adaptive models to iron deficit are detailedly discussed. Diagnosis of chlorosis induced by iron nutrition disorder is described and related effective correction are also suggested.